was one of the first fields to benefit from the development of Internet
GIS, popularized by online trip planning programs like MapQuest
or Yahoo! Maps (http://maps.yahoo.com).
This chapter describes some applications of Internet GIS in transportation,
especially transportation information dissemination and Intelligent
Transportation Systems (ITS). It also discusses a way of designing
a Web-based transit information system that allows transit users
to plan a trip itinerary and to query service-related information,
such as schedules and routes, using Internet GIS technologies. With
Internet GIS, schedule, traffic, and construction information can
be provided on the Internet in a graphic manner. Most of the traditional
customer service functions (e.g., schedules, routing, itinerary
planning, and real-time traffic information provision) in transportation
agencies can be enhanced or even replaced by Internet GIS or other
Web-based information systems.